Medical-battery electrode.



No. 794.161. PATENTED JULY 11, 1905.

K. L. VAN G. CURRY.

MEDICAL BATTERY ELECTRODE.

APPLICATION FILED APB.26,1905.

Maw.-

NTTEE STATES Patented July 11, 1905.

PATENT EETEE.

MEDICAL-BATTERY ELECTRODE.

SPECIFICATION forming part of Letters Patent No. 794.161, dated July 11,1905. Application filed April 26. 1905. Serial No. 257,432.

To all whom. it may concern.-

Be it known that I, KITTIE L. VAN GUYL- DER CURRY, a citizen of theUnited States, re siding at Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements inMedicaLBattery Electrodes, of which the following is a description.

My invention relates to that general class of devices known aselectrodes and which are employed for conveniently making electricalcontact with and thus introducing into an electric current various partsof a living body.

The object of my invention is to produce a simple, convenient, andaltogether desirable device of the kind described and one that by itsshape adapts itself to general use upon almost any portion of the body.

To this end my invention consists in the novel construction,arrangement, and combination of parts herein shown and described, andmore particularly pointed out in the claims.

In the accompanying drawings, wherein like or similar referencecharacters indicate like or corresponding parts, Figure l is anelevation of one form of my device. Fig. 2 is an enlarged section takensubstantially on line 2 2 of Fig. 1. Fig. 3 is a section takensubstantially on line 3 3 of Fig. 2. Fig. 4 is a section similar to thatshown in Fig. 2, but showing a slightly-mo dified form of my device.

My device consists, essentially, of a substantially closed hollow shellof any desired form having a small opening in one part for the entranceof a conductor and a frame or plate arranged within the shell oppositethe opening, to which the conductor is attached.

In the form of my device shown in the drawings, 1 is a twopart shellcomposed of any suitable material, preferably metal.

The two portions of the shell 1 are preferably so formed that whenunited in operative position the exterior of the shell is perfectlysmooth. As shown, the shell parts are united by means of screw-threads 2formed upon cooperating portions, the threads in one half being formedupon the interior of the shell and on the other half upon thecircumference of a cylindrical projection of suitable di ameter soconnected with its half-shell that when screwed together in place theouter portion of the two parts of the shell meet, forming asubstantially smooth exterior surface over the entire shell.

The plate 3 may be formed of any suitable material and shape and isarranged within the shell to provide a convenient place for attachingthe conductor 4, which preferably enters the shell through the opening 5at right angles, in the form shown, to the enter of the plate 3.

In the form shown in Fig. 4 to prevent twisting of the conductor 4 adouble swivel is provided between the conductor and the shell. First,the conductor is secured to a small bolt 6, positioned in a suitableopening in the plate 3 and having a nut 7 or equivalent means soarranged that it cannot be made to clamp the plate between the nut andbolt-head, thus leaving the bolt free to retate in the opening.Preferably washers S 8 are also arranged on each side of the plate andbetween the head and nut of the bolt 6 to still further reduce thefriction at this point. Second, a groove 9 is arranged in the shellwhere its parts are united, and the plate 3 is formed to loosely androtatably iit within the groove, so that in use the shell may bemanipulated as desired without danger of twisting or kinking theconductor.

In the form shown in Figs. 2 and 3 the swivel at the center of the plate3 is provided as above described; but the plate itself is fixed withinthe shell by being soldered, riveted, or pressed into place, and inpractice this form gives excellent satisfaction.

If preferred, a covering 10, of chamois leather, kid, or other poroussubstance, may be arranged upon the shell and gives a slightly bettercontact if slightly dampened than the bare shell and is much pleasanterwhere the electrode is applied directly to the body.

Obviously my electrode may be employed in combination with any form ofconductor or with any other form of electrode, if desired, or with anydevice for producing a suitable electric current.

In the drawings a spherical shell is shown; but I do not wish to beunderstood as limiting myself to any particular form.

Having thus described my improvement, it is. obvious that variousimmaterial 1nodilica tions may be made without departing from the spiritof my invention. Hence I do not wish to be understood as limiting myselfto the exact form and construction shown.

What I claim as new, and desire to secure by Letters Patent, is

1. An electrode, comprising a closed me tallic shell provided with an.opening for the admission of an electrical conductor, in combinationwith a plate arranged within the shell, opposite said opening and atsubstantially right angles thereto, and means for connecting a conductorto said plate.

2. An electrode, comprising a plurality of detachable parts providedwith screw-threads for connecting the same to form a closed shell with asmooth regular surface provided with an opening for the admission. of anelectrical conductor, in combination with a plate with in the shellopposite said opening and substantially at right angles thereto, and.means for rotatably connecting a conductor to said plate.

3. An electrode, comprising a closed me tallie shell provided with anopening for the admission of an electrical conductor, in combinationwith a plate arranged within the shell, opposite said opening and atsubstantially right angles thereto, a rotatable member mounted upon saidplate opposite said opening, and means for connecting a conductor tosaid rotatable member.

4. An electrode, comprising a closed me tallic shell provided with anopening for the admission of an electrical conductor, in combinationwith a rotatable plate arranged within said shell, opposite said openingand at substantially a right angle thereto, and means for connecting aconductor to said plate.

5. An electrode, comprising a closed me tallic shell provided with anopening for the admission of an electrical conductor, in combinationwith means for rotatably connecting a conductor to the interior of saidshell.

6. An electrode, comprising a plurality of detachable parts adapted whenconnected to form a closed shell having a smooth regular surfaceprovided with an opening for the admission of an electrical conductor,and a covering of porous material upon the exterior of said shell, incombination with means for rotatably connecting a conductor to theinterior of said shell.

7. An electrode,comprising a plurality of detachable parts adapted whenconnected to form a closed shell having a smooth regular surface,provided with an opening for the admission of an electrical conductor,in combination with means for rotatably connecting a conductor to theinterior of said shell.

8. An electrode, comprising a plurality of detachable parts adapted whenconnected to form a closed shell having a smooth regular surfaceprovided with an opening for the admission of an electrical conductor,and a covering of porous material upon the exterior of said shell, incombination with a plate arranged within said shell, opposite saidopening and at substantially right angles thereto, an opening in saidplate, a member extending through said opening arranged to loosely androtatably engage said plate, and means for connecting a conductor tosaid member.

9. An electrode, comprising a plurality of detachable parts adapted whenconnected to form a closed shell having a smooth regular surfaceprovided with an opening for the admission of an electrical conductor,and a covering of porous material upon the exterior of said shell, incombination with a plate rotatably arranged within said shell, oppositesaid opening and at substantially right angles thereto, an opening insaid plate, a member extending through said opening arranged to looselyand rotatably engage said plate, and means for connecting a conductor tosaid member.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

Kl lllll h. VAN GUYLDER CURRY.

WVitnesses BURTON U. HILLs, CHARLES I. COBB.

